PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10-943Handle,socket Wrench

Apex Tool Group, Llc Dba Nicholson · NSN 5120-00-242-3256 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-242-3256 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-242-3256. Primary manufacturer part number: 10-943.
Features
  • Handle,socket Wrench — FSC 5120
  • Material: STEEL WRENCHING SURFACE
  • Drive End Shape: SQUARE SINGLE END EXTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE AND 3 CLASS AND B STYLE
  • Style Designator: SPIN RIGID
  • Material: PLASTIC HANDLE
  • Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: CHROMIUM OVERALL
Applications
  • Applications requiring Steel Wrenching Surface construction
General Description

The Handle,socket Wrench, cataloged under National Stock Number 5120-00-242-3256, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Apex Tool Group, Llc Dba Nicholson. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-242-3256
Primary Part Number10-943
Item NameHandle,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc Dba Nicholson
StatusCANCELLED
MaterialSTEEL WRENCHING SURFACE
Drive End ShapeSQUARE SINGLE END EXTERNAL
Nondefinitive Spec/std Data1 TYPE AND 3 CLASS AND B STYLE
Style DesignatorSPIN RIGID
MaterialPLASTIC HANDLE
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Specification/standard Data05047-ASME B107.110 CAT 10 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2910-00-003-0112443271C91 INTERCHANGEABLE
Carburetor,float
Navistar Intl Corp Truck Br Ohio Plant
5120-00-177-7261TM4ASB INTERCHANGEABLE
Handle,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5920-00-221-50289001027 INTERCHANGEABLE
Fuseholder,block
Us Army Aviation and Missile Command
5120-00-288-6514 INTERCHANGEABLE
Handle,socket Wrench
5821-00-327-43154574 INTERCHANGEABLE
Cap Assembly,ground
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
5965-00-477-7587020-210-001-000 INTERCHANGEABLE
Earphone Element
Roanwell, Llc
3010-00-630-5895610943 INTERCHANGEABLE
Insert,flexible Coupling
Rexnord Industries, Llc Div Couplings Division
5120-00-786-3783 INTERCHANGEABLE
Handle,socket Wrench
5365-01-101-9146 INTERCHANGEABLE
Bushing
4320-01-194-596810943 INTERCHANGEABLE
Cap,piston Seat
Mcneil Ohio Corp
Cross-Reference Index
Part NumberManufacturer
10-943 Apex Tool Group, Llc Dba Nicholson (USA)
B107.110 CAT 10 TY1CL3STB General Services Administration Federal Supply Service (USA)
B107.10 The American Society of Mechanical Engineers (USA)
B107.10M The American Society of Mechanical Engineers (USA)
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-2167 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
B107.10 TY1CL3STB General Services Administration Federal Supply Service (USA)
B107.110 The American Society of Mechanical Engineers (USA)
4574 Duro Metal Products Co (USA)
B107.10M TY1CL3ST2 General Services Administration Federal Supply Service (USA)
H2247B Dowty Rfl Industries Inc (USA)
TM4A Sna Germany Gmbh (DEU)
GGG-W-641 TY3CL3STB General Services Administration Federal Supply Service (USA)
Related Parts
2910-00-003-0112INTERCHANGEABLE
CARBURETOR,FLOAT
443271C91
5120-00-177-7261INTERCHANGEABLE
HANDLE,SOCKET WRENCH
TM4ASB
5920-00-221-5028INTERCHANGEABLE
FUSEHOLDER,BLOCK
9001027
5120-00-288-6514INTERCHANGEABLE
HANDLE,SOCKET WRENCH
5821-00-327-4315INTERCHANGEABLE
CAP ASSEMBLY,GROUND
4574
5965-00-477-7587INTERCHANGEABLE
EARPHONE ELEMENT
020-210-001-000
3010-00-630-5895INTERCHANGEABLE
INSERT,FLEXIBLE COUPLING
610943
5120-00-786-3783INTERCHANGEABLE
HANDLE,SOCKET WRENCH
5365-01-101-9146INTERCHANGEABLE
BUSHING
4320-01-194-5968INTERCHANGEABLE
CAP,PISTON SEAT
10943
5120-01-335-0747INTERCHANGEABLE
HANDLE,SOCKET WRENCH
5120-01-335-0748INTERCHANGEABLE
HANDLE,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5120-00-242-3256?

NSN 5120-00-242-3256 is a Handle,socket Wrench, manufactured by Apex Tool Group, Llc Dba Nicholson, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-242-3256?

NSN 5120-00-242-3256 has 13 cross-referenced part numbers: 10-943 (Apex Tool Group, Llc Dba Nicholson), B107.110 CAT 10 TY1CL3STB (General Services Administration Federal Supply Service), B107.10 (The American Society of Mechanical Engineers), B107.10M (The American Society of Mechanical Engineers), GGG-W-641 (Federal Specifications Promulgated by General Services Administration Washington DC) and 8 more.

What NSN replaces 5120-00-242-3256?

There are 12 known substitutes for 5120-00-242-3256: 2910-00-003-0112, 5120-00-177-7261, 5920-00-221-5028 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10-943?

Key specifications for 10-943: Material: STEEL WRENCHING SURFACE; Drive End Shape: SQUARE SINGLE END EXTERNAL; Nondefinitive Spec/std Data: 1 TYPE AND 3 CLASS AND B STYLE; Style Designator: SPIN RIGID. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-242-3256 still in active supply?

NSN 5120-00-242-3256 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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